From 8698bca6b53d1f6641850b270de9c953078ed1ce Mon Sep 17 00:00:00 2001
From: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Date: Wed, 15 Dec 2010 07:30:51 -0800
Subject: [PATCH] ath9k_hw: Add a helper to get paprd scale factor
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
.../net/wireless/ath/ath9k/ar9003_eeprom.c | 21 +++++++++++++++++++
.../net/wireless/ath/ath9k/ar9003_eeprom.h | 3 +++
2 files changed, 24 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 4149ffb6d54a..9fa5793abd27 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -4843,6 +4843,27 @@ u8 *ar9003_get_spur_chan_ptr(struct ath_hw *ah, bool is_2ghz)
return eep->modalHeader5G.spurChans;
}
+unsigned int ar9003_get_paprd_scale_factor(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
+
+ if (IS_CHAN_2GHZ(chan))
+ return MS(le32_to_cpu(eep->modalHeader2G.papdRateMaskHt20),
+ AR9300_PAPRD_SCALE_1);
+ else {
+ if (chan->channel >= 5700)
+ return MS(le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20),
+ AR9300_PAPRD_SCALE_1);
+ else if (chan->channel >= 5400)
+ return MS(le32_to_cpu(eep->modalHeader5G.papdRateMaskHt40),
+ AR9300_PAPRD_SCALE_2);
+ else
+ return MS(le32_to_cpu(eep->modalHeader5G.papdRateMaskHt40),
+ AR9300_PAPRD_SCALE_1);
+ }
+}
+
const struct eeprom_ops eep_ar9300_ops = {
.check_eeprom = ath9k_hw_ar9300_check_eeprom,
.get_eeprom = ath9k_hw_ar9300_get_eeprom,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index efb6a02be377..afb0b5ee1865 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -315,4 +315,7 @@ s32 ar9003_hw_get_tx_gain_idx(struct ath_hw *ah);
s32 ar9003_hw_get_rx_gain_idx(struct ath_hw *ah);
u8 *ar9003_get_spur_chan_ptr(struct ath_hw *ah, bool is_2ghz);
+
+unsigned int ar9003_get_paprd_scale_factor(struct ath_hw *ah,
+ struct ath9k_channel *chan);
#endif
--
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